Mining Incidents

Mining Incidents in Minnesota

Minnesota has 32 recorded mining fatalities on file with MSHA, across 11,531 reportable incidents (1983–2023).

Every reportable accident on file with MSHA at a Minnesota mine. Operators below are ranked by recorded fatality count in this state.

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Abandoned and historical mine features in Minnesota →

Fatalities recorded
32
Total incidents
11,531
Fatal rate
0.3%
Years on record
1983–2023

Year-over-year fatalities

  1. 1983 3
  2. 1984 2
  3. 1987 1
  4. 1988 2
  5. 1989 3
  6. 1990 2
  7. 1991 1
  8. 1992 1
  9. 1994 1
  10. 1998 1
  11. 2000 2
  12. 2001 1
  13. 2005 1
  14. 2006 3
  15. 2007 2
  16. 2010 1
  17. 2011 2
  18. 2012 1
  19. 2019 1
  20. 2023 1

Top mines in Minnesota by fatality count

  1. 01 Minorca Mine 3fatal
  2. 02 Hibbing Taconite Company 2fatal
  3. 03 Cliffs Erie, LLC. 2fatal
  4. 04 Ottawa Plant 2fatal
  5. 05 Minntac Mine 1fatal

Mines in Minnesota by county

every county with a mine on MSHA's register; each county page lists its mines

County Mines Active Fatalities
St. Louis County 219 12 15
Stearns County 68 2 1
Olmsted County 65 3 1
Benton County 52 0 1
Douglas County 51 0 1
Blue Earth County 51 2 0
Clay County 51 0 0
Itasca County 50 1 0
Dakota County 46 4 0
Wright County 46 0 0
Hennepin County 44 1 0
Steele County 41 0 0
Houston County 39 0 0
Washington County 39 3 0
Beltrami County 38 1 0
Morrison County 37 0 2
Otter Tail County 35 0 1
Kandiyohi County 35 0 0
Scott County 35 3 0
Winona County 35 3 0
Carlton County 33 0 1
Fillmore County 33 0 0
Becker County 31 0 0
Le Sueur County 29 1 2
Goodhue County 28 1 1
Polk County 28 0 1
Crow Wing County 27 0 0
Todd County 27 0 0
Sherburne County 26 2 0
Renville County 25 0 1
Lyon County 25 0 0
Kanabec County 24 0 1
Mille Lacs County 24 1 1
Hubbard County 24 0 0
Marshall County 24 0 0
Chisago County 23 1 0
Koochiching County 22 0 0
Pope County 22 0 0
Rice County 22 0 0
Brown County 21 0 0
Cass County 21 0 0
Wabasha County 21 2 0
Freeborn County 19 0 0
Kittson County 19 0 0
Roseau County 19 0 0
Sibley County 18 1 1
Meeker County 16 0 0
Aitkin County 15 0 0
Redwood County 15 2 0
Cook County 14 0 1
Lake County 14 3 0
Murray County 14 0 0
Pennington County 14 0 0
Big Stone County 12 0 0
Dodge County 12 0 0
Pine County 12 0 0
Chippewa County 11 0 0
Clearwater County 11 0 0
Cottonwood County 11 1 0
Nicollet County 11 0 0
Carver County 10 1 0
Martin County 10 0 0
Pipestone County 10 0 0
Rock County 10 2 0
Stevens County 10 0 0
Watonwan County 10 0 0
McLeod County 9 0 0
Mower County 9 0 0
Yellow Medicine County 9 1 0
Faribault County 8 0 0
Wadena County 8 0 0
Lake of the Woods County 7 0 0
Nobles County 7 0 0
Ramsey County 7 0 0
Swift County 7 0 0
Isanti County 6 0 0
Jackson County 6 0 0
Lac qui Parle County 6 0 0
Anoka County 5 0 0
Norman County 5 0 0
Traverse County 5 0 0
Lincoln County 4 0 0
Mahnomen County 4 0 0
Grant County 3 0 0
Red Lake County 3 0 0
Wilkin County 3 0 0
Waseca County 1 0 0

Top operators by fatality count

  1. 01 Cemstone Products Company 2fatal
  2. 02 Cleveland-Cliffs Minorca Mine Inc. 2fatal
  3. 03 Hibbing Taconite Company 2fatal
  4. 04 Tri-City Paving, Inc. 2fatal
  5. 05 Unimin Minnesota Corporation 2fatal
  6. 06 United States Steel Corp-Minnesota Ore Operations 2fatal
  7. 07 United Taconite LLC 2fatal
  8. 08 4 J's Gravel Crushing 1fatal
  9. 09 Buckley Construction 1fatal
  10. 10 Erie Mining Company 1fatal

Recent fatalities

August 24, 2023 MN · Metal/Non-Metal outside foreman, leadman Fatality · MACHINERY
Cemstone Products Company · Caught in, under or between a moving and a stationary object

While attempting to lower feed box on wash plant employee was trapped between feed box and hand railing causing fatal injuries to employee.

November 5, 2019 MN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech Fatality · POWERED HAULAGE
Cleveland-Cliffs Minorca Mine Inc. · Struck against a moving object

Employee was driving Service truck SR136 on the main haul road heading east towards the pit. For unknown reasons at this time it appears the truck hit the berm on the south side of the road causing it to tip sideways ending up on the drivers side. EE was found outside of the vehicle.

July 26, 2012 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer Fatality · POWERED HAULAGE
Strata Corporation · Fall from machine

Full details are not yet known. Employee was lubricating a conveyor and the conveyor was started. Injuries are either from being thrown from the conveyor or being trapped in machinery.

December 8, 2011 MN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator Fatality · POWERED HAULAGE
Knife River North Central · Struck by falling object

Employee was placing removable legs on a transfer conveyor. Conveyor was held in place by a loader. Removable leg fell and struck employee in the face, fatally injuring the employee.

August 9, 2011 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator Fatality · POWERED HAULAGE
4 J's Gravel Crushing · Caught in, under or between running or meshing objects

A miner' s arm was caught in the components of a conveyor head pulley and conveyor scraper blade assembly, resulting in fatal injury.

June 12, 2010 MN · Metal/Non-Metal welder (shop) Fatality · SLIP OR FALL OF PERSON
Unimin Minnesota Corporation · Fall from scaffolds, walkways, platforms

Incident is still under investigation. Cause of death is unknown, awaiting autopsy report. The victim was working from an elevated location that was provided with handrails. He was using an 8 foot stepladder. While preparing to weld on an overhead vent pipe, he fell going over the handrail and landed on a railroad track 47 feet below.

June 8, 2007 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer Fatality · MACHINERY
Cleveland-Cliffs Minorca Mine Inc. · Caught in, under or between a moving and a stationary object

The deceased was fatally injured when a P&H Omega 20 ton mobile crane tipped on top of him while he attempted to exit the crane. The crane was attempting to postion a de-watering pipe when the accident occured. This accident is still under investigation by MSHA and Hazmat and United Steelworkers.

April 18, 2007 MN · Metal/Non-Metal drill operator Fatality · MACHINERY
United Taconite LLC · Fall from machine

Employee fell from cab of drill when drill tipped over. Employee fell approximately 40 feet from the dab to the next lower bench. Fall resulted in fatal injuries.

November 10, 2006 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer Fatality · FALLING/SLIDING/ROLLING MATERIALS
Seppi Brothers Concrete Products Corp · Struck by falling object

Employee was in the process of moving a stacking conveyor, hooking chains to the axle frame to be connected to a loader. Conveyor buckled in half landing on him in his attempt to run from the falling conveyor.

October 12, 2006 MN · Metal/Non-Metal electrician, lineman Fatality · ELECTRICAL
United Taconite LLC · Inhalation of radiations, caustics, toxic and noxious substances

Electrical explosion.

October 4, 2006 MN · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger Fatality · FALLING/SLIDING/ROLLING MATERIALS
Cemstone Products Co · Caught in, under or between a moving and a stationary object

Worker was preparing to remove a transmission from a machine. The operator's cab had to be removed prior to removal of transmission. Some or all of the fastners holding the cab were removed. Cab tipped pinning worker between cab, lower deck and hand rail.

October 28, 2005 MN · Metal/Non-Metal outside foreman, leadman Fatality · POWERED HAULAGE
Tri-City Paving, Inc. · Caught in, under or between a moving and a stationary object

Two employees were repositioning a conveyor. One was on the loader which was pulling the conveyor. The victim was directing and somehow got caught under the conveyor tire, crushing him.

October 2, 2001 MN · Metal/Non-Metal electrician, lineman Fatality · ELECTRICAL
Unimin Minnesota Corporation · Contact with electrical current

INDIVIDUAL CAME INTO CONTACT WITH OVERHEAD POWERLINE CAUSING DEATH BY ELECTRICUTION.

October 13, 2000 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer Fatality · FIRE
Hibbing Taconite Company · Contact with hot objects or substances

EMPLOYEE WAS OPERATING A CRAWLER TRACTOR ON THE #1039 STOCKPILE IN THE MINE PIT. A FLASH FIRE OCCURRED. THE OPERATOR EXPERIENCED EXTENSIVE BURNS AS HE EXITED THE OPERATOR'S CAB. INVESTIGATION CONTINUES. HE WAS HOSPITALIZED FOR 2 1/2 WEEKS IN THE BURN UNIT. ON NOVEMBER 2, 2000, MSHA WAS NOTIFIED THAT HE EXPIRED AT HOME.

August 30, 2000 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer Fatality · ELECTRICAL
Mark Sand & Gravel Acquisition Company · Contact with electrical current

WHILE CUTTING WITH ARCH WELDER, INDIVIDUAL WAS ELECTROCUTED.

August 23, 1998 MN · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor Fatality · EXPLODING VESSELS UNDER PRESSURE

THE SHIFT MANAGER TURNED THE VALVE ON THE PIPE PLUG WHICH WAS CONNECTED TO AN AIR COMPRESSOR ON THE BANK TO INFLATE THE PLUG. WHEN HE FELT THERE WAS ENOUGH AIR IN THE PIPE PLUG, HE SHUT THE VA LVE AND STATED OUT LOUD, "I THINK THERE IS ENOUGH AIR IN THE BLADDER, BUT THERE IS STILL SEEPAGE BETWEEN THE BLADDER AND THE PIPE." THE DECEASED BENT OVER THE PIPE AND TURNED THE AIR VALVE ON

February 10, 1994 MN · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor Fatality · FALLING/SLIDING/ROLLING MATERIALS
Oglebay Norton Taconite Company · Struck by falling object

EMPLOYEES WERE ATTEMPTING TO FREE BUILT UP SLAG AND DEBRIS FROM WEST WALL OF #2 GRATE PREHEAT AREA. EMPLOYEE INVOLVED WAS ON BACK END OF JACKHAMMER AND BEFORE STARTING, MATERIAL FELL FROM ABOV E, CAUSING ABOVE STATED FATALITY.

April 9, 1992 MN · Metal/Non-Metal blaster, shooter, shotfirer, explosive worker, powder gang/monkey Fatality · POWERED HAULAGE
Meridian Aggregates Company · Caught in, under or between a moving and a stationary object

OPERATOR OF PICK UP TRUCK WAS CRUSHED BETWEEN HIS TRUCK AND ANOTHER TRUCK THEN TRUCK RAN OVER OPERATOR

July 27, 1991 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer Fatality · POWERED HAULAGE
Morical Brothers Inc. · Caught in, under or between running or meshing objects

VICTIM ENTERED THE TAIL PULLEY AREA AND BECAME INTAGNLED IN TAIL PULLEY. RESULTS WERE FATAL INJURY.

July 6, 1990 MN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech Fatality · EXPLODING VESSELS UNDER PRESSURE
Ltv Steel Company Inc · Fall to the walkway or working surface

INJURED WAS CHANGING FLAT OUTSIDE DUAL TIRE ON HAULAGE TRUCK. WAS STRUCK BY INSIDE TIRE & OR MOUNTING HARDWARE WHEN LOCK RIM BASE WELD SEPARATED & TIRE EXPLODED.

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